Examine source code of Medienexpedition

{
  "name": "Medienexpedition",
  "manifest_version": 2,
  "version": "11.0",
  "theme": {
    "images": {
      "theme_frame": "lightweighttheme-header"
    },
    "colors": {
      "toolbar": "rgba(223, 215, 207, 1)",
      "toolbar_field": "rgba(255, 255, 255, 1)",
      "toolbar_field_text": "rgba(17, 17, 17, 1)",
      "frame": "rgba(156, 150, 144, 1)",
      "tab_background_text": "rgba(17, 17, 17, 1)",
      "bookmark_text": "rgba(17, 17, 17, 1)"
    }
  }
}